CN211304441U - Automobile part casting stretching die high in production efficiency - Google Patents

Abstract

The utility model relates to a drawing die for automobile parts castings with high production efficiency, which comprises a concave die for forming a product in the drawing process, a punch matched with the concave die, and a lower die seat fixed with the punch. 2. A blank holder set on the lower die base and provided with a positioning block, this high production efficiency auto parts casting drawing die can be stretched at one time, preventing scratches on the surface of the production parts, and greatly improving the work efficiency.

Description

A high-efficiency auto parts casting drawing die

technical field

The utility model relates to the technical field of parts processing molds, in particular to a drawing mold for automobile parts castings with high production efficiency.

Background technique

Stamping products in existing auto parts need to achieve high strength, and the shapes of the products are usually complicated. At the same time, due to the specific matching relationship, the dimensional tolerance of the workpiece is very small, the position of the assembly hole has a gap of 0.5mm, and the special edge contour has a gap of 0.5mm. The molding surface of the product requires many processes and scratches by the traditional molding method.

Therefore, it is necessary to provide a new drawing die for automobile parts castings with high production efficiency to solve the above problems.

Utility model content

The purpose of the utility model is to provide a drawing die for automobile parts castings with high production efficiency, to realize the forming method of one-step drawing in place, and to improve the working efficiency.

The technical solution adopted by the utility model to solve the technical problem is: a drawing die for automobile parts castings with high production efficiency, which comprises a concave die used for product forming during the drawing process, and a convex die matched with the concave die , a lower die seat fixed with the punch, and a blank holder set on the lower die seat and provided with a positioning block.

Further, the positioning block is used for positioning the product.

Further, an ejector pin hole is provided inside the lower die base.

Further, the blank holder is arranged on the lower die base and sleeved on the periphery of the punch, and can move up and down under the action of the hydraulic press ejector, which can withstand the pressing force of the stretching process, and the pressure is uniform and the material is fed smoothly.

Further, during the downward movement of the die, the pressure acts on the blank holder, and the molded product is sandwiched therebetween.

The utility model has the beneficial effects of a drawing die for automobile parts castings with high production efficiency, which can be drawn and formed at one time, prevents scratches on the surface of the production parts, and greatly improves the work efficiency.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the high production efficiency auto parts casting drawing die of the present utility model;

2 is a schematic diagram of the connection structure of the lower die base and the fixed block of the auto parts casting drawing die with high production efficiency of the present invention;

In the picture: 1. Concave die, 2. Punch die, 3. Holder ring, 4. Lower die holder, 5. Positioning block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

Example:

Referring to Figures 1-2, a drawing die for automobile parts castings with high production efficiency, which includes a concave die 1 for forming a product during the drawing process, a punch 2 matched with the concave die 1, and a convex die 2 matched with the convex die 1. A lower die base 4 to which the die 2 is fixed, and a blank holder 3 arranged on the lower die base 4 and provided with a positioning block 5 .

The die 1 is used to form the product during the stretching process. During the downward movement of the die 1, the blank holder 3 will be squeezed to generate a pressing force. Finally, it is completely matched with the punch 2 to form the product. There are several positioning blocks 5 for positioning the product, and the blank holder 3 can be pushed out by the ejector rod of the hydraulic press, and the pressure during the stretching process can be adjusted by the pressure of the ejector rod, so as to ensure the quality of the product.

Further, the positioning block 5 is used for positioning the product.

Further, the lower die base 4 is provided with a top pin hole inside.

Further, the blank holder 3 is arranged on the lower die base 4 and is sleeved on the periphery of the punch 2. It can move up and down under the action of the ejector rod of the hydraulic press, and can withstand the pressing force of the stretching process, and the pressure is uniform to feed the material. smooth.

Further, during the downward movement of the die 1, the pressure acts on the blank holder 3, and the molded product is sandwiched therebetween.

The working principle of this high-efficiency auto parts casting drawing mold: the blank holder 3 floats up under the action of the ejector rod of the hydraulic press, and the ejector rod has a certain force, so that the blank holder 3 is higher than the punch 2, and the material is placed On the blank holder 3, the material is adjusted and fixed with the positioning block 5 on the blank holder 3. The die 1 starts to move downward and starts to contact the material, so that the blank holder 3 is stressed, and the die 1 and the blank holder 3 clamp the material and continue to move downward. wrinkle. The material that moves downward begins to contact the punch 2 and is formed. During this process, the die 1 and the blank holder 3 are always in a state of stress, and the material moves to the end to make the material sandwiched between the punch 1 and the punch 2. The profiles are all in line with the product once formed and then taken out.

Compared with the prior art, the auto parts casting drawing die with high production efficiency can be drawn and formed at one time, prevents scratches on the surface of the production parts, and greatly improves the work efficiency.

Taking the above ideal embodiment according to the present invention as inspiration, through the above description, relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present utility model is not limited to the content in the description, and its technical scope must be determined according to the scope of the claims.

Claims (5)

1. a kind of auto parts casting drawing die with high production efficiency, is characterized in that, comprises the concave die that is used for product forming in the drawing process, the punch matched with the described die, and the lower die fixed with the punch. The die base, the blank holder set on the lower die holder and provided with the positioning block, the blank holder floats under the action of the hydraulic press ejector rod, and the material is adjusted and fixed by the positioning block on the blank holder. 2 . The drawing die for automobile parts castings with high production efficiency according to claim 1 , wherein the positioning block is used for positioning the product. 3 . 3 . The drawing die for castings of automobile parts with high production efficiency according to claim 1 , wherein the lower die holder is provided with an ejector pin hole inside. 4 . 4. The auto parts casting drawing die with high production efficiency as claimed in claim 1, characterized in that, the blank holder is arranged on the lower die seat and is sleeved on the periphery of the punch, and is up and down under the action of the hydraulic press ejector. Can move, can withstand the pressing force of the stretching process, and the pressure is uniform and the material is fed smoothly. 5 . The drawing die for automobile parts castings with high production efficiency according to claim 1 , wherein the pressure acts on the blank holder during the downward movement of the concave die, and the molded product is sandwiched in the middle. 6 .

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